fix: multi-node online stats, per-node Hy2 ports, and panel reload stability

Co-authored-by: Cursor <cursoragent@cursor.com>

docs/troubleshooting.md

@@ -74,6 +74,26 @@ systemctl restart jiedian-panel
 
 若域名在阿里云/Cloudflare 开了 **CDN 代理**，建议对管理域名 **关闭 CDN**（仅 DNS 解析到 VPS），否则 80 端口回源也可能异常。
 
+### 多节点全部显示离线
+
+sing-box 的 Clash API **不会在连接详情里返回用户 UUID**（单节点时面板用兜底逻辑，多节点必须按 inbound 区分）。
+
+升级后每个节点有 **独立 Hysteria2 端口**（按节点 ID 排序：8443、8444、8445…）。请：
+
+1. 更新代码并重新生成配置：
+   ```bash
+   cd /opt/jiedian && git pull
+   python3 scripts/render-server.py
+   systemctl restart sing-box jiedian-panel
+   ```
+2. **阿里云安全组** 放行 `8443-8499/UDP`（不只 8443）
+3. 在面板 **重新复制** 各节点的 Hysteria2 链接（端口可能已变）
+4. VLESS 多用户在线状态依赖 sing-box 日志，需保持 `log.level` 为 `info`（render-server 已默认）
+
+### 添加/删除节点后白屏或 503
+
+创建节点会触发 sing-box 重启，页面刷新时可能短暂不可用。新版前端会自动重试；若仍白屏，等 10 秒后手动刷新 `http://域名/面板路径/`。
+
 ### 在线节点 / 统计一直显示「检测中」
 
 页面初始状态是「检测中」。若长期不变且数字一直是 `-`，说明 **前端 JS 或 `/api/stats` 请求失败**（常见：静态资源路径缺少 `PANEL_PATH` 前缀）。
@@ -290,7 +310,7 @@ Hysteria2 仍需单独部署（或使用 sing-box 仅跑 Hy2 inbound）。
 | 22 | TCP | SSH | 是 |
 | 80 | TCP | ACME 验证 + **管理面板** | 是 |
 | 443 | TCP | VLESS + Reality | 是 |
-| 8443 | UDP | Hysteria2 | 是 |
+| 8443-8499 | UDP | Hysteria2（每节点递增端口） | 是 |
 | ~~8444~~ | ~~TCP~~ | ~~旧版面板的独立 HTTPS~~ | **已废弃，无需放行** |
 
 ## 安全建议

panel/app.py

@@ -5,6 +5,7 @@ from __future__ import annotations
 import os
 import secrets
 import subprocess
+import threading
 from functools import wraps
 from pathlib import Path
 
@@ -26,6 +27,7 @@ from stats import collect_node_stats
 ROOT = Path(os.environ.get("JIEDIAN_ROOT", Path(__file__).resolve().parents[1]))
 SECRET_FILE = ROOT / "data" / ".panel_secret"
 RENDER_SCRIPT = ROOT / "scripts" / "render-server.py"
+_apply_lock = threading.Lock()
 
 
 def _secret_key() -> str:
@@ -128,6 +130,18 @@ def apply_singbox() -> tuple[bool, str]:
     return True, "ok"
 
 
+def apply_singbox_background(on_fail=None) -> None:
+    """后台生成配置并重启 sing-box，避免阻塞 HTTP 请求导致 Nginx 503。"""
+
+    def worker() -> None:
+        with _apply_lock:
+            ok, msg = apply_singbox()
+        if not ok and on_fail:
+            on_fail(msg)
+
+    threading.Thread(target=worker, daemon=True).start()
+
+
 @app.route("/login", methods=["GET", "POST"])
 def login():
     if session.get("user"):
@@ -196,16 +210,19 @@ def api_add_node():
     body = request.get_json(silent=True) or {}
     name = (body.get("name") or request.form.get("name") or "新节点").strip()
     node = add_node(name)
-    ok, msg = apply_singbox()
-    if not ok:
-        delete_node(node["id"])
-        return jsonify({"error": msg}), 500
     env = load_env()
+    node_id = int(node["id"])
+
+    def on_fail(_msg: str) -> None:
+        delete_node(node_id)
+
+    apply_singbox_background(on_fail=on_fail)
     return jsonify(
         {
             "id": node["id"],
             "name": node["name"],
             "links": build_links(node, env),
+            "pending": True,
         }
     )
 
@@ -217,11 +234,9 @@ def api_delete_node(node_id: int):
         return jsonify({"error": "至少保留一个节点"}), 400
     if not delete_node(node_id):
         return jsonify({"error": "节点不存在"}), 404
-    ok, msg = apply_singbox()
-    if not ok:
-        return jsonify({"error": msg}), 500
+    apply_singbox_background()
     return jsonify({"ok": True})
 
 
 if __name__ == "__main__":
-    app.run(host="127.0.0.1", port=5080)
+    app.run(host="127.0.0.1", port=5080, threaded=True)

panel/db.py

@@ -6,7 +6,7 @@ import hmac
 import os
 import secrets
 import sqlite3
-import subprocess
+import uuid
 from pathlib import Path
 
 ROOT = Path(os.environ.get("JIEDIAN_ROOT", Path(__file__).resolve().parents[1]))
@@ -156,6 +156,4 @@ def node_count() -> int:
 
 
 def _generate_credentials() -> tuple[str, str]:
-    uuid = subprocess.check_output(["sing-box", "generate", "uuid"], text=True).strip()
-    hy2 = secrets.token_urlsafe(18)[:24]
-    return uuid, hy2
+    return str(uuid.uuid4()), secrets.token_urlsafe(18)[:24]

panel/links.py

@@ -5,6 +5,9 @@ import os
 from pathlib import Path
 from urllib.parse import quote
 
+from db import list_nodes
+from nodes_util import hy2_port
+
 
 def load_env() -> dict[str, str]:
     root = Path(os.environ.get("JIEDIAN_ROOT", Path(__file__).resolve().parents[1]))
@@ -26,6 +29,7 @@ def build_links(node: dict, env: dict | None = None) -> dict[str, str]:
     public_key = env["REALITY_PUBLIC_KEY"]
     short_id = env["REALITY_SHORT_ID"]
     name = quote(node["name"])
+    port = hy2_port(node, list_nodes())
 
     vless = (
         f"vless://{node['uuid']}@{vps_ip}:443"
@@ -33,5 +37,5 @@ def build_links(node: dict, env: dict | None = None) -> dict[str, str]:
         f"&sni={reality_sni}&fp=chrome&pbk={public_key}&sid={short_id}"
         f"&type=tcp#{name}"
     )
-    hy2 = f"hy2://{node['hy2_password']}@{domain}:8443?sni={domain}#{name}-Hy2"
+    hy2 = f"hy2://{node['hy2_password']}@{domain}:{port}?sni={domain}#{name}-Hy2"
     return {"vless": vless, "hy2": hy2}

panel/nodes_util.py

@@ -0,0 +1,16 @@
+"""节点端口与 inbound 标签（多节点统计用）。"""
+
+
+def ordered_nodes(nodes: list[dict]) -> list[dict]:
+    return sorted(nodes, key=lambda n: int(n["id"]))
+
+
+def hy2_port(node: dict, nodes: list[dict], base: int = 8443) -> int:
+    for index, item in enumerate(ordered_nodes(nodes)):
+        if int(item["id"]) == int(node["id"]):
+            return base + index
+    return base
+
+
+def hy2_inbound_tag(node_id: int) -> str:
+    return f"hy2-in-{node_id}"

panel/static/app.js

@@ -102,6 +102,33 @@ function setButtonBusy(btn, busy, busyText) {
   }
 }
 
+async function readJson(res) {
+  const text = await res.text();
+  try {
+    return JSON.parse(text);
+  } catch {
+    throw new Error(res.ok ? "响应格式错误" : `HTTP ${res.status}`);
+  }
+}
+
+async function reloadPanel(maxWaitMs = 15000) {
+  const url = `${panelBase()}/`;
+  const started = Date.now();
+  while (Date.now() - started < maxWaitMs) {
+    await new Promise((r) => setTimeout(r, 1500));
+    try {
+      const res = await fetch(url, { credentials: "same-origin" });
+      if (res.ok) {
+        location.href = url;
+        return;
+      }
+    } catch {
+      /* sing-box 重启期间可能短暂不可用，继续重试 */
+    }
+  }
+  location.href = url;
+}
+
 if (confirmAddBtn) {
   confirmAddBtn.addEventListener("click", async () => {
     const name = nodeName.value.trim() || "新节点";
@@ -114,10 +141,11 @@ if (confirmAddBtn) {
         headers: { "Content-Type": "application/json" },
         body: JSON.stringify({ name }),
       });
-      const data = await res.json();
+      const data = await readJson(res);
       if (!res.ok) throw new Error(data.error || "创建失败");
       toast("节点已创建，配置生效中…");
-      setTimeout(() => location.reload(), 600);
+      modal.classList.add("hidden");
+      reloadPanel();
     } catch (err) {
       toast(err.message || "创建失败");
       setButtonBusy(confirmAddBtn, false);
@@ -136,10 +164,10 @@ document.querySelectorAll(".delete-btn").forEach((btn) => {
         method: "DELETE",
         credentials: "same-origin",
       });
-      const data = await res.json();
+      const data = await readJson(res);
       if (!res.ok) throw new Error(data.error || "删除失败");
       toast("已删除，配置生效中…");
-      setTimeout(() => location.reload(), 600);
+      reloadPanel();
     } catch (err) {
       toast(err.message || "删除失败");
       setButtonBusy(btn, false);

panel/stats.py

@@ -3,18 +3,26 @@ from __future__ import annotations
 
 import json
 import os
+import re
 import sqlite3
+import subprocess
 import time
 import urllib.error
 import urllib.request
 from pathlib import Path
 
 from db import connect, list_nodes
+from nodes_util import hy2_inbound_tag, ordered_nodes
 
 ROOT = Path(os.environ.get("JIEDIAN_ROOT", Path(__file__).resolve().parents[1]))
 ENV_FILE = ROOT / ".env"
 
 CLASH_ADDR = "127.0.0.1:9090"
+_VLESS_INBOUND = "vless-reality-in"
+_LOG_USER_RE = re.compile(
+    r"\[([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12})\]\s+inbound connection"
+)
+_LOG_INDEX_RE = re.compile(r"\[(\d+)\] inbound connection")
 
 _speed_cache: dict[int, tuple[float, int, int]] = {}
 _conn_cache: dict[str, dict[str, int | str]] = {}
@@ -64,6 +72,43 @@ def fetch_clash_connections() -> tuple[list[dict], bool]:
     return payload.get("connections") or [], True
 
 
+def fetch_recent_log_uuids(nodes: list[dict]) -> set[str]:
+    """sing-box Clash API 不导出 user 字段，VLESS 多用户需从近期日志补全在线 UUID。"""
+    try:
+        proc = subprocess.run(
+            [
+                "journalctl",
+                "-u",
+                "sing-box",
+                "--since",
+                "3 min ago",
+                "--no-pager",
+                "-o",
+                "cat",
+            ],
+            capture_output=True,
+            text=True,
+            timeout=2,
+        )
+    except (OSError, subprocess.TimeoutExpired):
+        return set()
+    if proc.returncode != 0:
+        return set()
+
+    known = {node["uuid"] for node in nodes}
+    index_to_uuid = {i: node["uuid"] for i, node in enumerate(ordered_nodes(nodes))}
+    active: set[str] = set()
+    for match in _LOG_USER_RE.finditer(proc.stdout):
+        uid = match.group(1)
+        if uid in known:
+            active.add(uid)
+    for match in _LOG_INDEX_RE.finditer(proc.stdout):
+        uid = index_to_uuid.get(int(match.group(1)))
+        if uid:
+            active.add(uid)
+    return active
+
+
 def _global_conn_speed(connections: list[dict]) -> tuple[float, float]:
     """从 /connections 汇总字节增量估算全局速率（/traffic 为 WebSocket 流，不能同步 HTTP 读）。"""
     total_up = sum(int(c.get("upload") or 0) for c in connections)
@@ -81,6 +126,14 @@ def _global_conn_speed(connections: list[dict]) -> tuple[float, float]:
     return max(0.0, (total_up - u0) / dt), max(0.0, (total_down - d0) / dt)
 
 
+def _connection_inbound_tag(conn: dict) -> str:
+    meta = conn.get("metadata") or {}
+    inbound_type = str(meta.get("type") or "")
+    if "/" in inbound_type:
+        return inbound_type.split("/", 1)[1]
+    return inbound_type
+
+
 def _connection_user(conn: dict) -> str:
     meta = conn.get("metadata") or {}
     for key in ("user", "uid", "auth_user", "auth", "username"):
@@ -94,17 +147,6 @@ def _connection_user(conn: dict) -> str:
     return ""
 
 
-def _connection_meta(conn: dict) -> str:
-    meta = conn.get("metadata") or {}
-    parts = [
-        str(meta.get("type") or ""),
-        str(meta.get("network") or ""),
-        str(meta.get("inbound") or meta.get("inboundTag") or ""),
-        str(meta.get("inboundType") or ""),
-    ]
-    return " ".join(parts).lower()
-
-
 def _node_auth_keys(node: dict) -> set[str]:
     keys = {node["uuid"]}
     if node.get("hy2_password"):
@@ -112,18 +154,32 @@ def _node_auth_keys(node: dict) -> set[str]:
     return keys
 
 
-def _match_connection(conn: dict, node: dict) -> bool:
+def _match_connection(conn: dict, node: dict, *, single_node: bool = False) -> bool:
     user = _connection_user(conn)
     if user and user in _node_auth_keys(node):
         return True
-    meta = _connection_meta(conn)
-    if "hysteria" in meta and node.get("hy2_password"):
-        # 旧配置未设置 hy2 name 时，Clash API 可能不带 user
-        if user == node["hy2_password"]:
+
+    tag = _connection_inbound_tag(conn)
+    node_id = int(node["id"])
+    expected_hy2 = hy2_inbound_tag(node_id)
+    if tag == expected_hy2:
+        return True
+    if tag == "hysteria2-in" and single_node:
         return True
     return False
 
 
+def _match_vless_connection(conn: dict, node: dict, log_active: set[str]) -> bool:
+    tag = _connection_inbound_tag(conn)
+    if tag != _VLESS_INBOUND:
+        return False
+    user = _connection_user(conn)
+    if user == node["uuid"]:
+        return True
+    # 共享 VLESS inbound 无法从 Clash API 区分用户；仅唯一活跃用户时归因
+    return node["uuid"] in log_active and len(log_active) == 1
+
+
 def _connection_id(conn: dict) -> str:
     return str(conn.get("id") or "")
 
@@ -185,6 +241,7 @@ def _sync_connections(
     connections: list[dict],
     nodes: list[dict],
     uuid_to_node: dict[str, int],
+    log_active: set[str],
 ) -> dict[str, tuple[int, int]]:
     """同步连接缓存，断开连接时写入累计流量，返回各用户当前活跃会话流量。"""
     seen: set[str] = set()
@@ -195,7 +252,9 @@ def _sync_connections(
     for conn in connections:
         matched_uuid = ""
         for node in nodes:
-            if _match_connection(conn, node):
+            if _match_connection(conn, node, single_node=single_node) or _match_vless_connection(
+                conn, node, log_active
+            ):
                 matched_uuid = node["uuid"]
                 break
         if not matched_uuid and single_node and connections:
@@ -252,11 +311,39 @@ def _calc_speed(node_id: int, up: int, down: int) -> tuple[float, float]:
     return max(0.0, (up - u0) / dt), max(0.0, (down - d0) / dt)
 
 
+def _connections_for_node(
+    connections: list[dict],
+    node: dict,
+    nodes: list[dict],
+    log_active: set[str],
+) -> list[dict | None]:
+    single_node = len(nodes) == 1
+    matched = [
+        c
+        for c in connections
+        if _match_connection(c, node, single_node=single_node)
+        or _match_vless_connection(c, node, log_active)
+    ]
+    if matched:
+        return matched
+
+    if single_node and connections:
+        return connections
+
+    if node["uuid"] in log_active:
+        vless_hits = [c for c in connections if _connection_inbound_tag(c) == _VLESS_INBOUND]
+        if vless_hits:
+            return vless_hits
+        return [None]
+    return []
+
+
 def collect_node_stats() -> dict:
     nodes = list_nodes()
     uuid_to_node = {node["uuid"]: int(node["id"]) for node in nodes}
     connections, clash_ok = fetch_clash_connections()
-    active_by_uuid = _sync_connections(connections, nodes, uuid_to_node)
+    log_active = fetch_recent_log_uuids(nodes) if len(nodes) > 1 else set()
+    active_by_uuid = _sync_connections(connections, nodes, uuid_to_node, log_active)
     single_node = len(nodes) == 1
     has_connections = len(connections) > 0
     global_up_speed, global_down_speed = _global_conn_speed(connections) if clash_ok else (0.0, 0.0)
@@ -276,11 +363,7 @@ def collect_node_stats() -> dict:
         display_down = stored_down + session_down
         up_speed, down_speed = _calc_speed(node_id, display_up, display_down)
 
-        matched = [c for c in connections if _match_connection(c, node)]
-        if not matched and single_node and has_connections:
-            matched = connections
-        if not matched and (session_up + session_down) > 0:
-            matched = [None]  # 有活跃会话但 Clash 未返回连接详情
+        matched = _connections_for_node(connections, node, nodes, log_active)
         if not matched and single_node and global_active:
             up_speed = global_up_speed
             down_speed = global_down_speed
@@ -288,6 +371,7 @@ def collect_node_stats() -> dict:
         online = (
             len(matched) > 0
             or (session_up + session_down) > 0
+            or uid in log_active
             or (up_speed + down_speed) > 512
             or (single_node and (global_active or has_connections))
         )

panel/templates/dashboard.html

@@ -13,7 +13,7 @@
   <section class="hero">
     <div>
       <h1>节点列表</h1>
-      <p class="muted">VPS {{ vps_ip }} · Reality 443 · Hysteria2 8443</p>
+      <p class="muted">VPS {{ vps_ip }} · Reality 443 · Hysteria2 8443+</p>
     </div>
     <button id="addBtn" class="btn primary">+ 添加节点</button>
   </section>

scripts/install.sh

@@ -127,7 +127,7 @@ ufw default allow outgoing
 ufw allow 22/tcp comment 'SSH'
 ufw allow 80/tcp comment 'HTTP-ACME-Panel'
 ufw allow 443/tcp comment 'Reality'
-ufw allow 8443/udp comment 'Hysteria2'
+ufw allow 8443:8499/udp comment 'Hysteria2-multi-node'
 ufw --force enable
 
 log "部署 Nginx fallback 站点 ..."

scripts/render-server.py

@@ -54,15 +54,9 @@ def build_config(env: dict[str, str], nodes: list[dict]) -> dict:
             raise SystemExit(f".env 缺少 {key}")
 
     vless_users = [{"uuid": n["uuid"], "flow": "xtls-rprx-vision"} for n in nodes]
-    # name 与 VLESS uuid 一致，便于 v2ray/clash API 按用户统计流量
-    hy2_users = [
-        {"name": n["uuid"], "password": n["hy2_password"]} for n in nodes
-    ]
-    clash_secret = env.get("CLASH_API_SECRET", "")
+    hy2_base_port = 8443
 
-    config = {
-        "log": {"level": "warn", "timestamp": True},
-        "inbounds": [
+    inbounds: list[dict] = [
         {
             "type": "vless",
             "tag": "vless-reality-in",
@@ -83,20 +77,31 @@ def build_config(env: dict[str, str], nodes: list[dict]) -> dict:
                 },
             },
         },
+    ]
+    for index, node in enumerate(nodes):
+        inbounds.append(
             {
                 "type": "hysteria2",
-                "tag": "hysteria2-in",
+                "tag": f"hy2-in-{node['id']}",
                 "listen": "0.0.0.0",
-                "listen_port": 8443,
-                "users": hy2_users,
+                "listen_port": hy2_base_port + index,
+                "users": [
+                    {"name": node["uuid"], "password": node["hy2_password"]},
+                ],
                 "tls": {
                     "enabled": True,
                     "server_name": env["DOMAIN"],
                     "certificate_path": "/etc/sing-box/certs/fullchain.pem",
                     "key_path": "/etc/sing-box/certs/privkey.pem",
                 },
-            },
-        ],
+            }
+        )
+
+    clash_secret = env.get("CLASH_API_SECRET", "")
+
+    config = {
+        "log": {"level": "info", "timestamp": True},
+        "inbounds": inbounds,
         "outbounds": [{"type": "direct", "tag": "direct"}],
         "route": {
             "rules": [{"ip_is_private": True, "action": "reject"}],

server/nginx/acme.conf.template

@@ -20,6 +20,9 @@ server {
 __PANEL_ALLOW__
         proxy_pass http://127.0.0.1:5080/;
         proxy_http_version 1.1;
+        proxy_connect_timeout 10s;
+        proxy_send_timeout 120s;
+        proxy_read_timeout 120s;
         proxy_set_header Host __DOMAIN__;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;